ABSTRACT
Background: Two new classes of drugs approved by USFDA for the treatment of acute migraine are non-peptide Calcitonin Gene-Related Peptide (CGRP) receptor antagonists (rimegepant and ubrogepant) and 5-HT1F receptor agonist lasmiditan. There are no clinical trials comparing these two classes of newer drugs. Aim and Objectives: The present network meta-analysis was conducted with the objective to compare the efficacy of orally administered lasmiditan versus CGRP-receptor antagonists (rimegepant and ubrogepant) in the treatment of acute migraine. Materials and Methods: Electronic database search in PUBMED and Cochrane library was conducted using MeSH search terms “Lasmiditan” AND “Migraine” for articles on lasmiditan; while MeSH terms “Ubrogepant” AND “Migraine;” “Rimegeapnt” AND “Migraine” were used for articles on CGRP-antagonists. Randomized or cross-over studies comparing efficacy of oral lasmiditan and two FDA approved CGRP-antagonists (rimegepant, and ubrogepant) versus other active treatment or placebo in adults with acute attack of migraine were included in the analysis. Incidence of 2 h pain-free event was the primary outcome measure while the incidence of 24 h pain-free was the secondary outcome measure compared. Both frequent and Bayesian network meta-analysis were conducted by CRSU MetaInsight software. Results: In 12 eligible studies, seven interventions were compared with total 13795 patients analyzed in the network. Higher treatment ranking for 2 h and 24 h pain-free events was observed for lasmiditan 200 mg and rimegepant 150 mg, respectively. Conclusions: There is strong evidence to conclude that lasmiditan at 200 mg is better drug for immediate (2 h) headache freedom. There is limited evidence to support rimegepant for sustained effect (beyond 24 h).
ABSTRACT
Triptans, serotonin 5-HT1B/1D receptor agonists, more than revolutionizing the treatment of migraine, stimulated also ground breaking research that provided insights into the anatomy, physiology, and molecular pharmacology of migraine. This knowledge, in turn, is stimulating research on new mechanisms of action for the treatment of migraine. Accordingly, it is opportune to critically review the main advances in migraine science that happened in the triptan era. Herein we first review and conceptualize some of the progresses achieved in migraine science during the triptan era. We then review the class of the triptans - mechanism of action and clinical evidence. We close by briefly discussing the class of CGRP receptor antagonists, which is currently being developed for the acute treatment of migraine.
Os triptanos, agonistas serotoninérgicos 5-HT1B/1D, revolucionaram o tratamento da migrânea promovendo pesquisas que evidenciaram aspectos da anatomia, fisiologia e farmacologia molecular deste tipo prevalente de cefaléia primária. Esse conhecimento, por sua vez vem estimulando ainda mais a descoberta de novos mecanismos de ação para drogas anti-migranosas. Assim, é oportuno rever de forma crítica, os maiores avanços na ciência das cefaléias ocorridos durante a era dos triptanos. Inicialmente reveremos e conceituaremos alguns dos progressos obtidos nesta fase seguido de uma revisão profunda dos mecanismos de ação e evidências clínicas para o uso desta classe de fármacos. Finalmente, discutiremos a nova classe dos antagonistas dos receptores do peptideo geneticamente relacionado à calcitonina (CGRP) atualmente em desenvolvimento.